Oilstone.



R. FQ DBSGHBNAUX.

- oILsToNB.

APPLICATION FILED APR. 12. 1913.

Patented Jan. 20, '1914.

-LITED STATES PATENT OFFICE.v

Roon; FIRMIN DE'soHENAUx, or MONTREAL, QUEBEC, CANADA.

OILSTONE.

nascere.

Specification of Letters Patent.

Application filed April 12, 1913.

Patented Jan. 20, 1914.

Serial No. 760,749.

Province of Quebec, in the Dominion oi Canada, have invented certain new and useful Improvements Relating to Oilstones,v and do hereby declare that the following is a full, clear, and exact description of the` adapted to close the opening 8 and 10 is a same.

The invention is an improved oil stone and the objects are to devise a simple and efficient means for oiling the stone without` the necessity of carrying around a separate oil can.

A further object is to provide a device of this character which shall form a part of the oil stone box or carrier, the means employed being of such a nature that the box with it-s stone may be tipped, turned or shaken in any manner without causing a leakage of oil.

The invention consists essentially of an oil tank fitting in the well in the oil stone box, beneath the oil stone, a pump being arranged inside the oil tank with an operating plunger leading outside of the box, an outlet pipe from the pump leading to a vertical orifice in the stone and valve mechanism of a particular kind being arranged in the pump so that the oil cannot pass through the outlet pipe except on the operation of the plunger.

The invention will be better understood with the aid of the accompanying drawings in which- Figure l is a longitudinal vertical section of the device. Fig. 2 a perspective detail of the oil tank with a portion broken away to disclose the interior and Fig. 3 a perspective detail of a catch for securing the oil stone to the box.

Like numerals of reference indicate corresponding parts in each figure.

Referring to the drawings, 1 is the oil stone box formed with the deep well or recess 2 rectangular in shape as usual and in the upper end of which the oil stone 3 lits with about half its thickness extending above the-'box as usual. A lid or cover either detachable or hinged is provided, though this is not shown in the drawings.

4 is an oil tank of rectangular shape corresponding to and almost entirely filling the space beneath the oil stone in the well 2, said tank being closed on every side and having a filling opening 5 closed by a suitable cap.

6 is a small pump cylinder supported by suitable struts within the tank 4 and opening at one end into a valve chamber 7 closed at its upper end and having a small inlet opening 8 through its lower end communicating with thel interior of the tank 4.

9 is a check valve in the form of a ball perforated partition limiting the movement of said ball.

11 is a partition across the valve chamber 7 toward its upper end having an out-let orifice 12 therein, a ball 13 being pressed against said partition to resiliently close the hole by a spring 14.

15 is an outlet pipe leading from the valve chamber 7 just above the partition 11, through the top wall of the tank and communicating with a vertical oriiice 16 through the stone.

17 is a piston in the pump cylinder 6 having a rod 18 passing through a packed oritice 19 in one end of the tank and extending th erebeyond through an orifice 2O in the box into a slide way 21 for the push button 22 which latter projects into the recess 23 in one end of the box 1.

24 is a bearing supporting the piston rod 18 intermediate of its length and 25 is a spring encircling the rod 18 between said bearing 24 and the end 26 of the tank 4, said spring being caught to the rod at its outer end and its purpose being to keep the piston 17 normally at the end of its outward stroke.

27 are semi-circular recesses one in each end of the oil stone 3, and 2S are screw pins having the D heads 29 adapted to lock said stone in the well 2 on top of the tank 4 when the round parts of said heads engage the recesses 27. A small washer 30 encircles the short projecting end of the outlet pipe 15 and contacts a corresponding recess 31 in the oil stone around the lower end of the orifice 16, so that there will be no leak when oil is passing through the pipe 15 into the orifice 16.

In the operation of the invention the push Un the in stroke of the piston the said oil will be forced through the orifice 12 into the pipe 15 up the orifice 16 and on to the sharpening surface of the stone. On this in stroke the ball 9 Will be forced onto its seat so that the oil cannot pass out again through the orifice 8 and the ball 13 will be forced olf its seat against the pressure of the spring 14. It will be seen that there is only one Way for the oil to pass out through the pipe 15 and that is by first passing through the orifice 12 and unseating the ball 13, but as before explained, this ball is resiliently retained on its seat by the spring 14, therefore no amount of shaking or tipping will permit the oil to pass into the pipe 15, eX- cept by reciprocating the piston 17.

It must be noticed that with this invention a very large supply of oil may be carried as the pump is only for the purpose of raising the oil from the tank to the sur face of the stone. Y

What I claim as my invention is 1. In a device of the class described, a box having` a deep Well, a closedroil tank disposed Within said Well, an oil Stone supported above said tank and having an orifice therethrough leading to the sharpening surface, a pump Within said tank, an outlet pipe leading from said pump to said orifice in the stone and means for operating said pump, whereby the oil is lifted from said tank by the pump to the sharpening surface of the stone.

2. In a device of the class described, a box having a deep Well, an oil tank disposed in the bottom of said Well and a reciprocating pump disposed Within said tank, an oil stone supported above said tank Within the Well and having a vertical orifice therethrough leading to the sharpening surface, an outlet pipe leading from said pump to said outlet orifice, a piston adapted to reciprocate in said pump and having a rod leading through to the outside of said tank, a spring re strained push button in the end of said box contacting said rod and check valves in said pump.

Signed at the city of Montreal, Quebec, Canada, this 13th day of March, 1913.

ROCH FIR-MIN DESCHENAUX. Vitnesses P. Ln'rnLLrnn, M. PATENAUDE.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

